A shockproof high-voltage incoming line cabinet pressure detection equipment

Abstract

The utility model discloses a kind of anti-electric shock high-voltage incoming line cabinet voltage-withstanding detection equipment, belong to voltage-withstanding detection equipment technical field, a kind of anti-electric shock high-voltage incoming line cabinet voltage-withstanding detection equipment, including box, copper bar is equipped on box, copper bar is connected with experimental transformer, experimental transformer is connected with voltage regulator controller, further include: the two sides of copper bar are equipped with clamping plate, fixed support plate is slidably connected in clamping plate outside, fixed support plate is fixedly connected with support plate;Sliding support plate is slidably connected on support plate, sliding support plate is slidably connected with top plate, and power terminal rod is equipped on top plate;Power terminal rod is connected with experimental transformer, when power terminal rod is contacted with copper bar, the circuit of experimental transformer and copper bar is communicated;Insulating rod is installed on support plate;The utility model can be connected by insulating rod Distance wiring operation, avoid electric shock risk when wiring, and after power terminal rod reaches certain pressure to copper bar, automatically release the limiting connection of insulating rod and support plate.

Description

Technical Field

[0001] This utility model relates to the technical field of withstand voltage testing equipment, and in particular to a withstand voltage testing device for a high-voltage incoming cabinet that is designed to prevent electric shock. Background Technology

[0002] High-voltage incoming line cabinets are key equipment in power systems, primarily used for receiving and distributing high-voltage electrical energy. They are typically installed at the entrance of substations or distribution rooms, serving as the first control node for the introduction of high-voltage power. These cabinets feature a robust, metal-enclosed design and house core components such as high-voltage disconnect switches, circuit breakers, instrument transformers, and protection devices. They effectively isolate power sources, control circuit continuity, and monitor parameters such as voltage and current in real time. In the event of overloads or short circuits, the protection devices can quickly cut off the power supply, ensuring the safety of equipment and personnel. With their high reliability and strong protection, high-voltage incoming line cabinets have become an indispensable component of power transmission and distribution, widely used in industrial, commercial, and residential power distribution sectors.

[0003] High-voltage incoming switchgear withstand voltage testing equipment is a core tool for ensuring its insulation performance and safe and stable operation. During testing, this equipment applies high voltage to the high-voltage incoming switchgear to accurately simulate extreme operating conditions in actual operation, thereby comprehensively testing the insulation strength of the switchgear and ensuring its long-term stable operation under specified voltage conditions, avoiding faults such as insulation breakdown. However, in actual operation, extreme caution is required when connecting the withstand voltage testing equipment to the copper busbars inside the high-voltage incoming switchgear. This is because the energy storage components inside the switchgear may still retain residual charge after power is cut off. If the discharge process is incomplete, these residual charges will pose a potential safety hazard, easily causing electric shock accidents and seriously threatening the lives of testing personnel. Based on this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a withstand voltage testing device for high-voltage incoming line cabinets that can overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A withstand voltage testing device for a high-voltage incoming line cabinet designed to prevent electric shock includes a housing with a copper busbar connected to it. A test transformer is connected to the copper busbar, and a voltage regulator is connected to the test transformer. The device further includes: clamping plates on both sides of the copper busbar; a fixed support plate slidably connected to the outer side of each clamping plate; a support plate fixedly connected to the fixed support plate; a sliding support plate slidably connected to the support plate; a top plate slidably connected to the sliding support plate; and a terminal rod on the top plate. The terminal rod is connected to the test transformer, and when it contacts the copper busbar, the circuit between the test transformer and the copper busbar is connected. An insulating rod is mounted on the support plate, and when the insulating rod rotates, the distance between the terminal rod and the copper busbar is closed.

[0007] Preferably, the clamping plate is provided with a top block and a first limiting rod, the clamping plate is slidably connected to the fixed support plate through the first limiting rod, and a first compression spring is connected between the clamping plate and the fixed support plate.

[0008] Preferably, the support plate is threaded with bolts, and the insulating rod is slidably connected to the nut on the bolt.

[0009] Furthermore, the bolt is rotatably connected to the sliding support plate, and the sliding support plate is provided with a third limiting rod, and the sliding support plate is slidably connected to the support plate through the third limiting rod.

[0010] Preferably, the top plate is provided with a second limiting rod, the top plate is slidably connected to the sliding support plate through the second limiting rod, and a second compression spring is connected between the sliding support plate and the top plate.

[0011] Preferably, a sliding top rod is slidably connected to the support plate, and a limiting protrusion is provided on the insulating rod, with the sliding top rod engaging and limiting the limiting protrusion.

[0012] Furthermore, the top plate has connecting rods rotatably connected to both ends via pivots, and the other end of the connecting rods is rotatably connected to the sliding top rod via pivots.

[0013] Furthermore, guide rods are provided on both sides of the sliding support plate, and a sliding groove is provided on the connecting rod. The guide rod is slidably connected in the sliding groove. When the distance between the top plate and the sliding support plate is shortened, the sliding top rod moves to both sides to release the restriction on the insulating rod.

[0014] Compared with the prior art, this utility model provides a withstand voltage testing device for high-voltage incoming line cabinets to prevent electric shock, which has the following beneficial effects:

[0015] 1. This high-voltage incoming line cabinet withstand voltage testing equipment for electric shock protection, by setting up an insulating rod, support plate, fixed support plate, clamp plate, sliding support plate, top plate and power connection rod, enables remote wiring operations through the insulating rod, avoiding the risk of electric shock during wiring.

[0016] 2. This high-voltage incoming line cabinet withstand voltage testing equipment for electric shock protection is equipped with connecting rods, guide rods, and sliding top rods, which allows users to ensure the connection between the insulating rod and the support plate during operation, and automatically releases the limiting connection between the insulating rod and the support plate after the rod at the power connection end reaches a certain pressure on the copper busbar.

[0017] The parts not covered in this device are the same as or can be implemented using existing technology. This utility model can perform remote wiring operations through the insulating rod, avoiding the risk of electric shock during wiring, and automatically releases the limiting connection between the insulating rod and the support plate after the rod at the power connection end reaches a certain pressure on the copper busbar. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a withstand voltage testing device for a high-voltage incoming line cabinet designed to prevent electric shock, as proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the copper busbar and clamping plate in the withstand voltage testing device for an anti-electric shock high-voltage incoming line cabinet proposed in this utility model;

[0020] Figure 3 This utility model proposes a withstand voltage testing device for high-voltage incoming line cabinets designed to prevent electric shock. Figure 2 Enlarged structural diagram of section A;

[0021] Figure 4 This is a schematic diagram of the support plate and clamping plate in the withstand voltage testing equipment for anti-electric shock high-voltage incoming line cabinet proposed in this utility model;

[0022] Figure 5 This utility model proposes a withstand voltage testing device for high-voltage incoming line cabinets designed to prevent electric shock. Figure 4 Enlarged structural diagram of part B.

[0023] In the diagram: 1. Box body; 11. Copper busbar; 2. Voltage regulator; 21. Experimental transformer; 3. Support plate; 31. Fixed support plate; 32. Clamping plate; 321. Top block; 322. First limiting rod; 323. First compression spring; 33. Bolt; 34. Sliding top rod; 35. Top plate; 351. Second limiting rod; 352. Second compression spring; 36. Connecting rod; 361. Sliding groove; 37. Electrical terminal rod; 38. Sliding support plate; 381. Third limiting rod; 382. Guide rod; 4. Insulating rod; 41. Limiting protrusion ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: Refer to Figures 1-5 A withstand voltage testing device for a high-voltage incoming line cabinet designed to prevent electric shock includes a housing 1, a copper busbar 11 mounted on the housing 1, a test transformer 21 connected to the copper busbar 11, and a voltage regulator 2 connected to the test transformer 21. The device also includes: clamping plates 32 on both sides of the copper busbar 11, a fixed support plate 31 slidably connected to the outer side of the clamping plates 32, and a support plate 3 fixedly connected to the fixed support plate 31; a sliding support plate 38 slidably connected to the support plate 3, and a top plate 35 slidably connected to the sliding support plate 38; a power-connecting rod 37 mounted on the top plate 35; the power-connecting rod 37 is connected to the test transformer 21, and when the power-connecting rod 37 contacts the copper busbar 11, the circuit between the test transformer 21 and the copper busbar 11 is connected; an insulating rod 4 is installed on the support plate 3, and when the insulating rod 4 rotates, the distance between the power-connecting rod 37 and the copper busbar 11 is connected.

[0027] In this invention, to prevent electric shock caused by residual charge inside the high-voltage incoming cabinet when testing personnel connect the experimental transformer 21 and the copper busbar 11 via wires, a clamping device is provided. The copper busbar 11 is clamped by a clamping plate 32, and the contact rod 37 is pushed against the exposed surface of the copper busbar 11 by a movable sliding support plate 38. The contact rod 37 is connected to the wire, so that when the contact rod 37 contacts the copper busbar 11, the circuit between the experimental transformer 21 and the copper busbar 11 is connected. The movement of the contact rod 37 and the sliding support plate 38 is controlled by the rotation of the insulating rod 4, thereby eliminating the risk of electric shock to the user during the wiring stage.

[0028] Example 2: Refer to Figures 1-5The method is basically the same as in Embodiment 1, but with a further improvement: The clamping plate 32 is provided with a top block 321 and a first limiting rod 322. The clamping plate 32 is slidably connected to the fixed support plate 31 via the first limiting rod 322. A first compression spring 323 connects the clamping plate 32 and the fixed support plate 31. A bolt 33 is threadedly connected to the support plate 3. The insulating rod 4 is slidably connected to the nut on the bolt 33. The bolt 33 is rotatably connected to the sliding support plate 38. A third limiting rod 381 is provided on the sliding support plate 38, which is slidably connected to the support plate 3 via the third limiting rod 381. A second limiting rod 351 is provided on the top plate 35, which is slidably connected to the support plate 3 via the second limiting rod 351. A sliding support plate 38 is connected to a second compression spring 352 between the sliding support plate 38 and the top plate 35. A sliding top rod 34 is slidably connected to the support plate 3. A limiting protrusion ring 41 is provided on the insulating rod 4. The sliding top rod 34 engages with the limiting protrusion ring 41 for limiting. The two ends of the top plate 35 are rotatably connected to a connecting rod 36 through a rotating shaft. The other end of the connecting rod 36 is rotatably connected to the sliding top rod 34 through a rotating shaft. Guide rods 382 are provided on both sides of the sliding support plate 38. A sliding groove 361 is opened on the connecting rod 36. The guide rod 382 is slidably connected in the sliding groove 361. When the distance between the top plate 35 and the sliding support plate 38 is shortened, the sliding top rod 34 moves to both sides to release the limiting of the insulating rod 4.

[0029] In this utility model, the fixed support plate 31 is fixedly connected to the support plate 3 to form a fixed support frame. The first compression spring 323 provides clamping force to the clamping plate 32. The first limiting rod 322 limits the movement range of the clamping plate 32. The top block 321 is provided on the clamping plate 32, so that the user only needs to push the entire clamping device towards the copper busbar 11 to push the copper busbar 11 into the clamping plate 32 to complete the clamping of the copper busbar 11. Preferably, the side of the top block 321 facing the copper busbar 11 is provided with a rubber layer, which can improve the friction between the top block 321 and the copper busbar 11 and ensure the clamping force.

[0030] The insulating rod 4 is inserted into the nut on the bolt 33 by plugging. By rotating the insulating rod 4, the bolt 33 can be rotated, thereby moving the bolt 33 axially. This in turn moves the sliding support plate 38, which pushes the top plate 35 and the power-connecting rod 37 to move, completing the contact and disengagement of the power-connecting rod 37 with the copper busbar 11. At the same time, when the power-connecting rod 37 is pressing against the copper busbar 11, the power-connecting rod 37 and the top block 321 together clamp the copper busbar 11.

[0031] The sliding top rod 34 is slidably connected in the support plate 3. When the sliding top rod 34 moves to the middle, it locks the limiting protrusion ring 41, thereby limiting and fixing the insulating rod 4. When the sliding support plate 38 pushes the top plate 35 and the power connection rod 37 to press against the copper busbar 11 and continues to move forward, the distance between the sliding support plate 38 and the top plate 35 shortens. As the second compression spring 352 is compressed, the pressure of the power connection rod 37 on the copper busbar 11 increases. The two sides of the top plate 35 are rotatably connected to the connecting rods 36. As the distance between the sliding support plate 38 and the top plate 35 shortens, the sliding support plate 38 presses against the connecting rods 36 and rotates to both sides through the guide rod 382, ​​thereby driving the sliding top rod 34 to move to both sides and releasing the locking and limiting of the insulating rod 4 by the sliding top rod 34.

[0032] When using the device, the user first connects the voltage regulator 2 to the experimental transformer 21 with a wire, and then connects the experimental transformer 21 to the power connection rod 37 with a wire. Next, the insulating rod 4 is inserted into the bolt 33. During the insertion process, the sliding top rod 34 is pushed open and then locked into the limiting protrusion ring 41 to limit the insulating rod 4. After the limiting is completed, the user can hold the insulating rod 4 and push the support plate 3 to drive the clamping plate 32 to lock onto the copper busbar 11. When the clamping plate 32 is locked into the designated position, the user can rotate the insulating rod 4 to push the top plate 35 and the power connection rod 37 to abut against each other. As the sliding support plate 38 continues to push, the distance between the sliding support plate 38 and the top plate 35 shortens. After a certain distance is reached, the limiting of the insulating rod 4 is released, and the wiring operation is completed.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A withstand voltage testing device for a high-voltage incoming line cabinet designed to prevent electric shock, comprising a housing (1), wherein a copper busbar (11) is provided on the housing (1), an experimental transformer (21) is connected to the copper busbar (11), and a voltage regulator (2) is connected to the experimental transformer (21), characterized in that, Also includes: The copper busbar (11) is provided with clamping plates (32) on both sides. A fixed support plate (31) is slidably connected to the outside of the clamping plate (32). A support plate (3) is fixedly connected to the fixed support plate (31). A sliding support plate (38) is slidably connected to the support plate (3), and a top plate (35) is slidably connected to the sliding support plate (38). A power terminal rod (37) is provided on the top plate (35). The power connection rod (37) is connected to the experimental transformer (21). When the power connection rod (37) is in contact with the copper busbar (11), the circuit of the experimental transformer (21) and the copper busbar (11) is connected. An insulating rod (4) is installed on the support plate (3). When the insulating rod (4) rotates, the distance between the power terminal rod (37) and the copper busbar (11) is connected.

2. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 1, characterized in that, The clamping plate (32) is provided with a top block (321) and a first limiting rod (322). The clamping plate (32) is slidably connected to the fixed support plate (31) through the first limiting rod (322). A first compression spring (323) is connected between the clamping plate (32) and the fixed support plate (31).

3. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 1, characterized in that, The support plate (3) is threadedly connected to a bolt (33), and the insulating rod (4) is slidably connected to the nut on the bolt (33).

4. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 3, characterized in that, The bolt (33) is rotatably connected to the sliding support plate (38), and the sliding support plate (38) is provided with a third limiting rod (381). The sliding support plate (38) is slidably connected to the support plate (3) through the third limiting rod (381).

5. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 1, characterized in that, The top plate (35) is provided with a second limiting rod (351), and the top plate (35) is slidably connected to the sliding support plate (38) through the second limiting rod (351). A second compression spring (352) is connected between the sliding support plate (38) and the top plate (35).

6. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 1, characterized in that, A sliding top rod (34) is slidably connected to the support plate (3), and a limiting protrusion (41) is provided on the insulating rod (4). The sliding top rod (34) engages with the limiting protrusion (41) to limit its position.

7. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 6, characterized in that, The top plate (35) has connecting rods (36) rotatably connected to both ends via a pivot, and the other end of the connecting rods (36) is rotatably connected to the sliding top rod (34) via a pivot.

8. The withstand voltage testing device for a high-voltage incoming line cabinet against electric shock according to claim 7, characterized in that, The sliding support plate (38) is provided with guide rods (382) on both sides, and the connecting rod (36) is provided with a sliding groove (361). The guide rod (382) is slidably connected in the sliding groove (361). When the distance between the top plate (35) and the sliding support plate (38) is shortened, the sliding top rod (34) moves to both sides to release the restriction on the insulating rod (4).

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